Presentation
Incidental splenic mass on ultrasound exam (not shown) performed for abdominal pain.
Patient Data
Well-defined ovoid splenic mass of subcapsular location measuring 38 X 36 X 30 mm. It elicits a slight low signal to normal splenic parenchyma on T1, slight heterogeneous high signal on T2 with early progressive nodular centripetal enhancement on arterial phase, progressive centripetal fill-in on portal venous phase and almost complete fill-in on delayed phase.
Case Discussion
MRI features suggestive of splenic hemangioma.
Splenic hemangiomas, also known as splenic venous malformations, splenic cavernous malformations, or splenic slow flow venous malformations are considered the most common primary benign neoplasm of the spleen and the second commonest focal lesion involving the spleen after simple splenic cysts. Usually discovered incidentally, occasionally may be associated with abdominal pain or splenomegaly.
The imaging features of splenic hemangiomas are not specific, other solid splenic lesions may have a similar appearance such as hamartoma, littoral cell angioma, sclerosing angiomatoid nodular transformation (fibrosing variant of hamartoma), primary angiosarcoma and metastasis.
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